<form action="{{ site.url }}/search/" method="get">
  <input type="search" name="q" {% if include.add_id %}id="search-input"{% endif %} placeholder="{% if site.active_lang == 'en' %}What would you like to know?{% else %}想知道些什么呢？{% endif %}" autofocus>
  {% include search-icon.html %}
  <input type="submit" value="Search" style="display: none;">
</form>
